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Finding the Fourth Proportional to 1,088.97, 1,633.60 and 395.97

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Solution

The fourth proportional to 1,088.97, 1,633.60 and 395.97 is: 594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.97 : 1,633.60 = 395.97 : x
  2. Step 2: Convert to fraction form
    1,088.97/1,633.60 = 395.97/x
  3. Step 3: Cross multiply
    1,088.97x = 1,633.60 × 395.97
  4. Step 4: Simplify right side
    1,088.97x = 646,855.56
  5. Step 5: Solve for x
    x = 646,855.56/1,088.97
  6. Step 6: Final answer
    x = 594.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.